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What is the 21st term of the sequence givin by xn=4n-3 is it A) 6 or B)72 or C)81 or D)87
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What is the 21st term of the sequence givin by xn=4n-3 is it A) 6 or B)72 or C)81 or D)87

What is the 21st term of the sequence givin by xn=4n-3 is it A) 6 or B)72 or C)81 or-example-1
User Virtualpathum
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In this problem, the nth x is no different from saying x(n)=4n-3.


x_n=4n-3 \implies x_(21)=4(21-3)=84-3=81

User Alexandre Bell
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